I need help in developing a program on \"Monthly budget\" using C++ program with

Question

I need help in developing a program on "Monthly budget" using C++ program with the following instructions: (1)Math operations (for max points use built-in math functions) NOTE: Increment does not count as a math operation. (2)If / else or a switch statement (to get max points use nested if /elses)(3)Loops – 2 types (for max points use nested loops) (4)Validated user input (5)Save the data to a sequential data file and read from it (6)At least 3 functions appropriately passing parameters and returning values as needed (to get max points, overloaded function) (7)Two dimensional arrays or vectors..

Explanation / Answer

Please follow the code wit the description in the comments :

#include <iostream>
#include <iomanip>
using namespace std;

//gets users income
float getIncome()
{
   float income;
   cout << " Your monthly income: ";
   cin >> income;
   return income;
}

//gets users budgeted living expenses
float getBudgetLiving()
{
   float budgetLiving;
   cout << " Your budgeted living expenses: ";
   cin >> budgetLiving;
   return budgetLiving;
}

//Gets users actual expenses
float getActualLiving()
{
   float actualLiving;
   cout << " Your actual living expenses: ";
   cin >> actualLiving;
   return actualLiving;
}

//gets users other expenses
float getActualOther()
{
   float other;
   cout << " Your actual other expenses: ";
   cin >> other;
   return other;
}

//computes tithing
float computeTithing(float income)
{
   return income * 0.10;
}

//Computes Tax
float computeTax(float a)
{
   float yearlyIncome;
   float yearlyTax;
   float monthlyTax;

   yearlyIncome = a * 12;

   if (a > 336550)
       yearlyTax = 91043 + 0.35*(yearlyIncome - 336550);
   else if (336550 >= a > 188450)
       yearlyTax = 42170 + 0.33*(yearlyIncome - 188450);
   else if (188450 >= a > 123700)
       yearlyTax = 24040 + 0.28*(yearlyIncome - 123700);
   else if (123770 >= a > 61300)
       yearlyTax = 8440 + 0.25*(yearlyIncome - 61300);
   else if (61300 >= a > 15100)
       yearlyTax = 15100 + 0.15*(yearlyIncome - 15100);
   else (15100 >= a > 0);
   yearlyTax = yearlyIncome*0.10;

   monthlyTax = yearlyTax / 12;

   return monthlyTax;
}

//gets users actual tithe paid
float getActualTithing()
{
   float tithing;
   cout << " Your actual tithe offerings: ";
   cin >> tithing;
   return tithing;
}

//Gets users actual Tax Paid
float getActualTax()
{
   float tax;
   cout << " Your actual taxes withheld: ";
   cin >> tax;
   return tax;
}

float budgetDifference(float income, float budgetLiving, float other)
{
   float computeBudgetDifference;
   float monthlyTax = computeTax(income);
   float tithe = computeTithing(income);

   computeBudgetDifference = income - (budgetLiving + tithe + monthlyTax + other);
   return computeBudgetDifference;
}

float actualDifference(float income, float other, float actualLiving, float tax)
{
   float computeActualDifference;
   float tithing = computeTithing(income);

   computeActualDifference = income - (other + tithing + actualLiving + tax);

   return computeActualDifference;
}

//displayss budget Chart
float chartDisplay()
{
   cout.setf(ios::fixed);
   cout.setf(ios::showpoint);
   cout.precision(2);

   float income = getIncome();
   float budgetLiving = getBudgetLiving();
   float actualLiving = getActualLiving();
   float other = getActualOther();
   float tithing = getActualTithing();
   float tithe = computeTithing(income);
   float tax = getActualTax();
   float monthlyTax = computeTax(income);
   float computeBudgetDifference = budgetDifference(income, budgetLiving, other);
   float computeActualDifference = actualDifference(income, other, actualLiving, tax);

   cout << " The following is a report on your monthly expenses" << endl;
   cout << " Item" << setw(24) << "Budget" << setw(16) << "Actual" << endl;
   cout << " =============== =============== ===============" << endl;
   cout << " Income" << setw(11) << "$" << setw(11) << income << setw(5)
       << "$" << setw(11) << income << endl;
   cout << " Taxes" << setw(12) << "$" << setw(11) << tax << setw(5) << "$"
       << setw(11) << monthlyTax << endl;
   cout << " Tithing" << setw(10) << "$" << setw(11) << tithe << setw(5)
       << "$" << setw(11) << tithing << endl;
   cout << " Living" << setw(11) << "$" << setw(11) << budgetLiving << setw(5)
       << "$" << setw(11) << actualLiving << endl;
   cout << " Other" << setw(12) << "$" << setw(11) << other << setw(5)
       << "$" << setw(11) << other << endl;
   cout << " =============== =============== ===============" << endl;
   cout << " Difference" << setw(7) << "$" << setw(11)
       << computeBudgetDifference << setw(5) << "$" << setw(11)
       << computeActualDifference << endl;

   return 0;
}

//Main display
int main()
{
   cout << "This program keeps track of your monthly budget "
       "Please enter the following:" << endl;
   chartDisplay();
   system ("PAUSE");
   return 0;
}

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